摘要
对宁夏春小麦三种不同产量结构类型品种 (系 )的产量构成因素 ,分别进行了灰色关联度分析 ,并对各品种的光合速率和灌浆速率进行了测定。结果表明 :多穗型 (96H98)、中间型 (宁春 4号 )品种产量构成因素的关联度排序为 6 6 7m2 穗数 >千粒重 >穗粒数 ,并且光合速率和灌浆速率高 ,籽粒饱满 ,产量高。大穗型 (宁作 19号 )品系产量构成因素的关联度为穗粒数 >千粒重 >6 6 7m2 穗数 ,并且穗粒数多 ,穗数少 。
The yield component factors of Ningxia's three varieties of spring wheat were analyzed respectively, and their photosynthesis rate and filling rate were also measured. The results showed that the GRC order of yield component factors of the spring wheat (96H98) of multi-ear variety and the spring wheat of transitional variety (Ningchun No.4) is:ear-number/667M 2 KGW ear-grain number. The photosynthesis rate and filling rate of these varieties are hihg, the wheat is plump-eared and the yields are good. The GRC order of yield component factors of the big-ear variety of spring wheat (Ningzuo No.19) is: ear-grain KGW ear number/667M 2. The number of ear grain of this variety is large, the number of ears is small, and the photosynthesis rate and filling rate are lower.
出处
《宁夏农学院学报》
2001年第1期21-24,共4页
Journal of Ningxia Agricultural College
